Section III. ADJUSTMENTS

TM 11-6760-238-34

b. Reassembly Procedures.

(1)

Remove two screws (1) and two

lockwashers and remove plate and fastener assembly

(1) Replace and solder wires removed in

(3) from holding fixture. Repeat this step for the other

step a(12) above to light assembly (32).

side if necessary.

(2) Position electrical connector (33) and

(2) Remove two taper pins (4) and remove

light assembly (32) in case and nut assembly (34) and

(5) gear at rear location form crank handle (6)

secure with hardware removed in step a(11) above.

(3) Remove crank handle (6) and washer

(3) Position case and nut assembly (34) on

(7), spring (8), washer (7), gear (5) and remove crank

holding fixture and secure with hardware removed in

step a(10) above.

handle (6) from holding fixture.

(4) Remove shoulder screw (9) latch and pin

(4)

Position switch assembly (24) on

assembly (11), and spacer (10) from holding fixture.

bracket (28) and secure with hardware removed in step

(5)

Depress lockpin (14) and remove

a(9) above.

thumbscrew (12) and washer (13) from lockpin (14) and

(5) Replace and solder wires removed in

carefully move lockpin (14) and spring (15) from block

step a(8) above to switch assembly (24).

(16).

(6) Place shield (23) over switch assembly

(6)

Remove screw (17), washer (18),

(24) and secure with hardware removed in step a (7)

washer (19) and clamp (20) from holding fixture.

above.

(7) Remove four screws (21), four washers

(7) Replace clamp (20) and secure with

(22) and remove shield (23) from holding fixture.

hardware removed in step a(6) above.

(8) Remove and tag wires attached to

(8) Insert spring (15) and lockpin (14) in

switch assembly (24).

block (12). Depress lockpin (14) and secure in place

(9) Remove two screws (25), two nuts (26),

with washer (13) and thumbscrew (12)

two washers (22), two washers (27), and remove switch

(9) Position latch and pin assembly (11) and

assembly (24) from bracket (28).

spacer (10) on shoulder screw (9) and secure to holding

(10) Remove two screws (30) and remove

fixture.

case and nut assembly (34) from holding fixture.

(10) Insert crank handle (6) in holding

(11) Remove nut (p/o 32), lamp (p/o 32),

fixture and replace gear (5), washer (7), spring (8),

four screws (31) and remove electrical connector (33)

washer (7), and slide crank handle through rear block

and light assembly (32) from case and nut assembly

and place second gear (5) on crank handle (6) and

(34).

replace taper pins (4).

(12) Unsolder and tag wires attached to light

(11) Position plate and fastener assembly

assembly (32).

(3) on holding fixture and secure with hardware removed

in step a(1) above.

Section III. ADJUSTMENTS

position.

4-9. General

Adjust variable resistor A8R6 on shutter

This section contains detailed instructions for alignment

assembly test board and components assembly A8 until

and adjustments required after general support repairs

voltmeter reads + 4.2 + 0.1 volts dc.

have been performed on the equipment. When ever

4-11. Bridge Assembly A10 Razor Blade

lower level repairs have been performed on the

equipment by general support personnel, or when the

Adjustment

extent of repairs performed by lower levels and the

(fig 4-4)

condition of the equipment is uncertain, perform lower

To properly adjust the six razor blades located on the

level alignment procedures as applicable Lower level

bridge assembly A10, proceed as follows:

alignment procedures are contained in paragraph 3-9 of

a. Carefully loosen but do not remove the ten

this manual.

mounting screws which secure five selected razor

4-10. Variable Resistor A8R6 Adjustment

blades.

(fig. 4-3)

NOTE

To properly adjust variable resistor A8R6 (10), proceed

The two mounting screws of either the

as follows:

extreme left or right end razor blade

a. Connect test equipment as shown in figure 3-1.

must not be loosened. The selected

b. Set MASTER switch on test panel to INTERN.

blade will serve as the reference blade

TESTS + 4.2VDC.

for proper adjustment of the remaining

CAUTION

blades.

Adjust voltmeter controls to monitor +5

Hold a 0 015 inch thickness gauge

volts dc.

perpendicular to the edge of the reference blade and

c. Operate test panel POWER switch to ON

position the ad-

4-8